Question

½(10p-7q) if p=9 and q=2

Answer 1

`(1)/(2)(10p-7q)`

Evaluate the expression for p = 9 and q = 2:

`\begin{gathered} (1)/(2)(10(9)-7(2)) \\ (1)/(2)(90-14) \\ (1)/(2)(76)=38 \\ \end{gathered}`